﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace NGUYENMANHDUNG.OOP.Excercises2
{
    class CONTROLLERS_MAYTINH
    {
        public double Cong(double a, double b) 
        {
            return a + b;

        }
        public double Tru(double a, double b)
        {
            return a - b;

        }
        public double Nhan(double a, double b)
        {
            return a * b;

        }
        public double Chia(double a, double b)
        {
            return a / b;

        }


    }
}
